I've been doing a little research on what I could treat my logs with to prevent termite damage and decay. It sounds like boron is the wave of the future. Wood can be sprayed, brushed or dipped with liquid boron. I'm told that a singe treatment is all that is needed to protect against termites, and it is harmless to people and pets. I was told to mix 1 pint of liquid boron per gallon of water. There are also some products sold for this particular purpose; TimBor, Bora-car and Shellguard. Here is one of the links I found.

www.louisianahouse.org/termites/boroneffect.asp